EXFEATechnology Replacement Parts Set, Technology Parts Bricks Kit Engine Gear Equipment Clamping Building Blocks Connector, Compatible with Lego Technic, 116 Pieces

Topica Technical Parts Cars Gears Axles Compatible with MOC Bricks, 116Pcs Cogs and Gears Chain Link Connectors Crawlers Replacement Parts Pack

Power Functions Set with Motor, 2 Pieces Power Functions Set, M-Motor Battery Box Compatible with Major Brands

LEGO Gadgets (Klutz) Multi-color